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silent

Two gallon-sized paint cans–one made out of clear plastic and the other metal– are side by side on a table. Behind them, two youths are seated at the table. Together they place a handheld, hand crank radio with a long antenna into the plastic paint can.

Radio Explorers: Radio Silence

Learners compare and contrast how a variety of materials can block radio waves.

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The National Informal STEM Education Network (NISE Network) is a community of informal educators and scientists dedicated to supporting learning about science, technology, engineering, and math (STEM) across the United States.

The NISE Network is supported by multiple sources of funding - learn more. Except where otherwise noted all materials are licensed under a Creative Commons license, as per the Use and Privacy statement and Legal Notice.